What types of penetration are in the game?

[Z-z]

Okay, this is out of curiosity.
What types of penetration are in the game, and what NPC have those options?
(skip the most normal ones like anal , oral and vaginal penetration)

 

[Tide Hunter]

Okay, this is out of curiosity.
What types of penetration are in the game, and what NPC have those options?
(skip the most normal ones like anal , oral and vaginal penetration)

Tailpussy. But I think there's only Shade and maybe the 9-tailed Zil that can be penetrated in the tails. Though many others can fuck your tail-pussy. As for which ones can fuck it, look here.
Also, if you have a massive Cock, Nayna can fuck your cock with her cock. That is, urethral penetration.

 

[TheShepard256]

Female rodenian NPCs on Zheng Shi, as well as the vulpatra fuckdoll from KiroQuest, also have options for aural (i.e. ear) penetration.

Also, if you have a massive Cock, Nayna can fuck your cock with her cock. That is, urethral penetration.

Azra also has a scene like that. For the other way around, you can also fuck Taivra and Renvra in their (pseudo)cocks.